JP2000032258A - Image processing unit and image processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the processing unit efficient and to reduce the cost by setting an operating mode corresponding to each function of image processing to a color image or a monochromatic image and assigning access to image processing data stored corresponding to each operating mode through divisions of the access corresponding to each operating mode. SOLUTION: It takes time of 16 times a memory access time for one pixel cycle in a color copy mode, it takes time of 8 times in a color scan mode, it takes time of a 4 times in a monochromic copy mode, and it takes time of 2 times in a monochromic scan mode. Since plural image processing data corresponding to each functional mode are stored in one memory and access time is assigned through divisions corresponding to each functional mode, the memory access time is reduced in a mode such as the monochromic scan mode where the processing is light and a high speed operation is a requirement, and the memory access time is increased in a mode such as the color copy mode where the processing is heavy to obtain an optimum processing speed in each mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image processing apparatus and an image processing method, and more particularly, to image processing of a color image or a monochrome image read by a scanner and outputting the processed image to an output device such as a printer or transferring the image to a host computer. The present invention relates to an image processing apparatus and an image processing method having both a copying function and a scanning function.

[0002]

2. Description of the Related Art A conventional image processing apparatus has a plurality of functions,
For example, there is an apparatus that has a color copy function, a monochrome copy function, a color scan function, and a monochrome scan function, and performs image processing corresponding to each of these functions.

In this case, storage means for storing image processing data (for example, data for shading correction, γ correction, etc.) used for image processing is required.

When the image processing is the most complicated color copy function, the amount of image processing data used in the image processing increases.

As a result, in an image processing apparatus having a plurality of functions, a storage means (memory IC or the like) for storing image processing data is provided so as to cope with a color copy function in which image processing is the most complicated. , For each application.

[0006]

However, in the case of a function other than the complicated color copy function, for example, in the case of a monochrome copy function in which image processing is simple, it is not necessary to provide a plurality of memories individually. Some memory is not deleted. As a result, there is a problem that the number of memories increases and the cost increases.

On the other hand, in consideration of the improvement of the apparatus performance, the performance of the copy function largely depends on the performance of the connected printer. Normally, color printing is compared to monochrome printing.
It is considered that it takes about four times as long, and in the copy mode, it is considered that the monochrome copy should operate faster than the color copy. Further, it is better that the scan mode operates faster than the copy mode.

As described above, in an image processing apparatus having a plurality of functions combining color / monochrome and copy / scan, an actual processing time is assigned to each mode due to the difference in performance of each function. Is advantageous in terms of processing efficiency.

However, since the actual processing time is limited by the access time to the memory, in the conventional image processing apparatus having a large number of memories, the assignment of the memory access corresponding to each mode is insufficient. As a result, there is a problem in terms of processing efficiency.

Accordingly, it is an object of the present invention to reduce the number of memories for image processing data and to allocate access to the memories in accordance with each mode, thereby achieving efficiency and cost reduction of image processing. It is an object of the present invention to provide a possible image processing apparatus and image processing method.

[0011]

SUMMARY OF THE INVENTION The present invention provides a color copying function, a monochrome copying function, a color scanner function,
An apparatus having both a monochrome scanner function and an image processing means for performing image processing on a color image or a monochrome image formed by each of the functions, and operating the image processing means in correspondence with each of the functions. Mode setting means for setting the operation mode, storage means for storing image processing data corresponding to each operation mode, and dividing access to each image processing data of the storage means in accordance with each operation mode. And an access control means for assigning the image data.

The present invention is also an apparatus having both a color copying function and a monochrome copying function, wherein the image processing means performs image processing on a color image or a monochrome image formed by each of the functions. Mode setting means for setting an operation mode for causing the image processing means to operate in accordance with each function; storage means for storing image processing data corresponding to each of the operation modes; An image processing apparatus is configured by including access control means for dividing and allocating access in accordance with each operation mode.

The present invention is also an apparatus having both a color scanner function and a monochrome scanner function, wherein the image processing means performs image processing on a color image or a monochrome image formed by each of the functions. Mode setting means for setting an operation mode for causing the image processing means to operate in accordance with each function; storage means for storing image processing data corresponding to each of the operation modes; An image processing apparatus is configured by including access control means for dividing and allocating access in accordance with each operation mode.

Further, the present invention is a method for performing image processing corresponding to a color copying function, a monochrome copying function, a color scanner function, and a monochrome scanning function, wherein a color image or a monochrome image formed by each of the above functions is provided. Performing image processing, setting an operation mode for executing the image processing corresponding to each function, and storing image processing data corresponding to each operation mode in a storage unit. And a step of dividing and assigning access to each piece of image processing data of the storage means in accordance with each operation mode, thereby providing an image processing method.

Further, the present invention is a method for performing image processing corresponding to a color copying function and a monochrome copying function, comprising the steps of performing image processing on a color image or a monochrome image formed by each of the functions. Setting an operation mode for executing the image processing corresponding to each function; storing image processing data corresponding to each operation mode in a storage unit; and storing each image processing data in the storage unit. And assigning the access to the image data in accordance with each of the operation modes, thereby providing an image processing method.

Further, the present invention is a method for performing image processing corresponding to a color scanner function and a monochrome scanner function, comprising the steps of performing image processing on a color image or a monochrome image formed by each of the functions. Setting an operation mode for executing the image processing corresponding to each function; storing image processing data corresponding to each operation mode in a storage unit; and storing each image processing data in the storage unit. And assigning the access to the image data in accordance with each of the operation modes, thereby providing an image processing method.

The present invention also provides a computer
A color recording function, a monochrome copying function, a color scanner function, and a medium recording a program for controlling image processing corresponding to the monochrome scanning function, and the control program is formed on a computer by the above functions. Color or monochrome images
Image processing is performed, an operation mode for executing the image processing corresponding to each function is set, and image processing data corresponding to each operation mode is stored in a storage unit.
Access to each image processing data of the storage means,
A recording medium in which an image processing control program is recorded is provided by dividing and assigning the image processing control program in accordance with each of the operation modes.

Further, the present invention provides a computer
A medium in which a program for controlling image processing corresponding to a color copying function and a monochrome copying function is recorded, and the control program causes a computer to execute a color image or a monochrome image formed by each of the functions.
Image processing is performed, an operation mode for executing the image processing corresponding to each function is set, and image processing data corresponding to each operation mode is stored in a storage unit.
Access to each image processing data of the storage means,
A recording medium in which an image processing control program is recorded is provided by dividing and assigning the image processing control program in accordance with each of the operation modes.

The present invention also provides a computer
A medium recording a program for controlling image processing corresponding to the color scanner function and the monochrome scanner function, the control program, the computer, for a color image or a monochrome image formed by each of the functions, Causing the image processing to be performed, setting an operation mode for executing the image processing in accordance with each function, storing image processing data corresponding to each operation mode in a storage unit, and storing each image in the storage unit. A recording medium in which an image processing control program is recorded is provided by dividing and assigning access to processing data in accordance with each of the operation modes.

Here, the access control means can change the access time per pixel corresponding to each of the operation modes.

[0021]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a configuration example of an image processing system provided with an image processing apparatus according to the present invention.

The image processing apparatus 1 has a plurality of functions of a color copying function, a monochrome copying function, a color scanner function, and a monochrome scanning function.
And the image processing unit 3.

The image input unit 2 is provided with a color CCD 4 as image input means and an A / D converter 5.

The image processing unit 3 includes a mode setting unit 6 for setting each mode of color / monochrome and copy / scan, an SHD (shading correction) unit 7, a γ (gamma) conversion unit 8, and an ED process ( An error diffusion unit 9, a memory control unit 10, and an external memory 11 (RAM) storing image processing data of each function are provided.

The gamma converter 8 of the image processor 3 is connected to an external host computer 13 via a host interface (I / F) 12.

The ED processing section 9 is connected to a color printer 14 for forming an image.

Hereinafter, the configuration of each part will be described.

First, in the image input unit 2, the color CC
At D4, a color image is read, and the luminance value of each pixel of RGB is output as analog data. The A / D converter 6 converts the RGB analog data into 10-bit (bit) digital data for each of RGB. This digital data is input to the image processing unit 3.

Next, in the image processing section 3, the SHD section 7
Then, for the digital data of the input pixel, CC
The sensitivity variation of D and the light source are corrected. Next, the γ-conversion unit 8 adjusts the luminance curve. The reason for performing the γ conversion is that the image data read by the color CCD 4 changes linearly with respect to the luminance value, but when a scanned image is displayed on a display, it is converted to, for example, a 0.45 power curve, When performing color copying, it is used as a LOG table for luminance / density conversion. The γ-converted data is branched and transmitted in two directions from the next processing.

The gamma-converted data is input to the ED processing unit 9 to execute copy mode processing.
In addition, a scan mode process is executed by being input to the host I / F 12.

In the copy mode, the ED processing unit 9 prints multi-bit data of each pixel of 8 bits by the color printer 14, so that binarization is performed by an error diffusion method. By outputting the data to the color printer 14, the read image is copied.

In the scan mode, the γ-converted data is transferred to the host computer 13 via the host I / F 12.
Output to

The SHD unit 7, the γ conversion unit 8, and the ED processing unit 9 have a memory as a work area. further,
Independently of the processing system, the mode setting unit 6 performs overall setting of the image processing system, and switches among a color copy mode, a color scan mode, a monochrome copy mode, and a monochrome scan mode.

FIG. 2 mainly shows the configuration of the memory control unit 10.

SHD section 7, γ conversion section 8, ED processing section 9
Is a data input terminal DI and a data output terminal D0, and is connected to one external memory 11 via the memory control unit 10.

The timing generator 20 generates a synchronizing signal, which is input to the SHD 7, the gamma converter 8, the ED processor 9, and the memory controller 10 for synchronization. The SHD unit 7, the γ conversion unit 8, and the ED processing unit 9 synchronize with the synchronization signal from the timing generation unit 20 and operate in the operation mode (color copy,
Color scan, monochrome copy, monochrome scan)
The access to the memory 11 is switched according to.

The memory control unit 10 includes an access switching sequence control unit 21 and each processing unit (SHD, GAMMA, E
D) Address counters 22 to 24 for 7 to 9 and address and data multiplexers 25 and 26.

First, the access switching sequence control section 21
Generates an address-up signal for incrementing an address counter at the same time as generating a memory access switching pattern according to the operation mode.

In this example, the SHD unit 7 performs one memory read for one pixel component at a pixel position in the horizontal direction. here. Since the memory configuration is such that RGB is combined to form one memory block, the address up signal is applied to the processing of one pixel of the SHD unit 7 and
It is incremented by 3 for GB.

The address counter 22 of the SHD unit 7 is divided into a pix address 22a indicating a pixel position and a bank address 22b indicating a location of a memory block. The pix address 22a is initialized to 0 at the beginning of processing of one line, and is thereafter incremented by 1 as the processing of one pixel component progresses. bank address 22
b is a fixed value indicating a block allocated for SHD in the memory 11. If a detailed portion unrelated to the operation of one page is added, actually, when reading an image, the memory access of the SHD unit 7 is only reading, but there is a process of writing correction data before reading one page. Therefore, the SHD unit 7 has a data output DO.

The address counter 23 of the γ conversion unit 8 calculates
al address 23a, col address 23b, and ba
NK address 23c.

Since the γ conversion unit 8 performs a table reference process,
Reading from the memory 11 is performed once for each pixel component.
The lower 8 bits of the val address 23a are values input from the gamma converter 8, the 2 bits of the col address 23b are table address switching values indicating colors, and the bank address 23c is a block allocated in the memory 11 different from the SHD unit 7. It is a fixed value. In terms of the actual circuit configuration, the γ conversion unit 8 needs to write the values in the table before performing the image processing, but the circuit is omitted here.

The address counter 24 of the ED section 9 is provided with a col address 24 indicating a color (CMYK 2 bit) value.
a, a pix address 24b indicating a pixel position, and a bank address 24c indicating a block in the memory 11.

In the ED process, one read and one write are required for one pixel and one component for the convenience of the process. As a result, the address becomes col address 24a and pix
Every time one pixel is processed in combination with the address 24b, the count is incremented by one. The bank address 24c is a fixed value indicating a block in the memory 11, like the bank addresses 22b and 23c of the SHD unit 7 and the ED unit 9.

In the access switching sequence control, some blocks do not perform read / write depending on the mode. For example, in the color scan mode, there is no data in the ED processing unit 9 because the error diffusion process is not performed. Therefore, in the color scan mode, the sequence control signal is not switched to the ED processing unit 9.

FIG. 3 shows an address map of the memory 11.

Here, the number of pixels for one line is 2048 pixels with an A4 width of 300 dpi. This memory 1
1 includes a memory area 30 of the SHD section 7, a memory area 31 of the γ conversion section 8, and a memory area 32 of the ED processing section 9.

The memory area 30 of the SHD unit 7 is combined into RGB areas, and becomes a memory area of 2480 * 3 bytes. The bank address = 0 in FIG. In this memory area, SHD up to 2048 pixels in RGB order
The correction data is stored side by side.

The memory area 31 of the γ conversion unit 8 has 256b
It is 768 bytes for yte * 3 and bank address =
2000H (lower 10 bits invalid: 2 ＾ 10 is val8
bit + col2bit). In the memory block, the values of the conversion table corresponding to the pixel values of RGB from 0 to 255 are sequentially stored.

The memory area 32 of the ED processing unit 9 has CMY
In the order of K, a memory area for 2048 pixels is obtained.
k address = 4000H (lower 14 bits invalid: 2 ＾ 1)
4 is pix + col bit number). Similarly, in the memory block, up to 2048 pixels are ED in CMYK order.
The error data of the processing unit 9 is stored side by side.

(Circuit Operation) Next, the operation of the present apparatus will be described.

FIGS. 4 to 7 show each mode (color copy mode, color scan mode, monochrome copy mode,
The operation (shown as a hatched area) in the monochrome scan mode) will be described.

FIG. 4 shows the operation in the color copy mode.

The color CCD 4 and the A / D converter 5 obtain 10-bit RGB digital data. Here, the output data of the A / D converter 5 is in the order of RGB components.

The SHD unit 7 performs the RCB shading correction. Shading correction is performed for three colors of RGB, and digital data of 8 bits each for RGB is used. At this time, shading data for three colors of RGB is read from the memory 11. As the shading data, an output value of the A / D converter 5 when a reference white plate is read is set.

The γ conversion unit 8 converts each pixel value of RGB 8 bits into a table using a γ table. At this time, conversion is performed by reading the table memory for the three RGB colors. In the copy mode, since this conversion is conversion of luminance and density, the value of the LOG table is set in advance as the value of the table memory.

The ED processing section 9 executes error diffusion processing as the last processing of the image processing. That is, the γ conversion unit 8
In order to output the multi-valued (for example, 8-bit precision) density data converted by the above to the color printer 14 (a binary printer such as an ink jet printer), a binarization process is performed. At this time, a line memory for storing error data is required for the ED processing, and an access for reading an error and an access for writing an error are performed for one YMCK pixel component. Here, although not described in the entire block, ED
In the processing unit 9, after actually extracting K (black),
Perform ED processing. And finally, ED-treated YM
The binary data of CK is sent to the color printer 14 to obtain a copy of a color image.

FIG. 5 shows the operation in the color scan mode.

The processing up to the γ conversion processing is the same as the processing in FIG. Also in this case, the contents of the γ table are set to 0.45 power or linear according to the instruction of the host computer.

The gamma-converted 8-bit RCB pixel data is transmitted to the host computer 13 via the host I / F 12. At this time, unlike color copy, E
Since the data does not pass through the D processing unit 9, the CMYK memory access does not occur.

FIG. 6 shows the operation in the monochrome copy mode.

In the SHD processing, unlike the color copy mode, there is no need to perform RGB shading processing. SHD processing may be performed only on G data. Therefore, at the time of shading, access to the RB memory area of the memory 11 does not occur.

Similarly, in the γ conversion processing, the memory 1
No access to one RB memory area occurs.

Further, the ED processing section 9 may also process only K (black) data. Also in this case, the memory 1
No access to one CMY memory area occurs. Other processes are the same as those of the color copy. Finally, the binary data of K is sent to the color printer 14 and there is no CMY color data, so that a monochrome copying operation is performed.

FIG. 7 shows the operation in the monochrome scan mode.

This mode is an operation in which the color scan mode shown in FIG. 5 and the monochrome copy mode shown in FIG. 6 are combined. The SHD unit 7 and the γ conversion unit 8 are processes for only G data. The ED processing unit 9 does not operate.

The data sent to the host computer 13 is an 8-bit G-SHD-processed and gamma-converted data.
The image data is accurate.

8 to 10 show the operation in each of the processing units 7 to 9.

FIG. 8 shows the processing of the SHD processing section 7.

The SHD processing section 7 includes a pixel address generation section 40 serving as an address of the memory 11, a register 41 for storing memory data, and a divider 42 for normalizing. The memory 11 reads the white plate in advance.
It has an SHD line memory that stores data for the lines.

When the actual image data is read, the read pixel data is normalized (normalized = divided by the maximum value 255) with the data stored in the line memory to obtain pixel data. In the case of color, similar processing is performed for each pixel component of RGB. Although there is actually a circuit for reading a white plate, it is omitted here.

FIG. 9 shows the processing of the γ conversion unit 8.

The gamma converter 8 comprises an address generator 43 for obtaining an address from pixel data and a register 44 for storing memory data read from the memory 11.
The memory 11 has a γ table memory for storing a table of the number of gradations (here, 256).

The γ conversion unit 8 converts pixel data having 8-bit gradation using a 2 ＾ 8 256-byte table. In the case of color, the same table for the three colors or a separate table for the three colors can be used. In practice, the values to be written to the table are given as parameters for image processing and are set in advance.

FIG. 10 shows the processing of the ED processing section 9.

The ED processing section 9 has an error calculation binarization processing section 45 for calculating and binarizing an error, and a memory 11 for each pixel.
And a register 47 and 48 for reading / writing to the memory 11. The memory 11 has an ED line memory for storing one line of error data.

Although the actual processing is not described here, the access to the memory 11 includes an error read for reading error data every time one pixel component is binarized, and an error write for distributing error data to the next line. And access is required.

FIGS. 11A to 11D show examples of memory access in each mode. FIG. 11B shows a color scan mode, FIG. 11C shows a monochrome copy mode, and FIG.
1 (d) shows processing in the monochrome scan mode.

FIG. 11A shows memory access in the color copy mode.

Considering the operation of FIG. 4, RG
For one pixel represented by B, in the SHD correction processing, R
RGB three times for memory read and gamma conversion
In the ED process, the memory read is performed three times and the memory read is performed four times and the memory write is performed four times.
This is a total of 14 memory accesses.

Since four components are required in the ED process, here, after the SHD process and the RGB access in the γ conversion process,
A cycle in which the number of times of memory access is 16 is set in a unit of one pixel by including a section that is not accessed once.

Therefore, as can be seen from FIG. 11A, in the color copy mode, one pixel cycle takes 16 times as long as the memory access time.

FIG. 11B shows memory access in the color scan mode.

Considering the operation of FIG. 5, RG
For the B1 pixel, three memory reads of RGB are performed in the SHD process, and three memory reads of RGB are performed in the γ conversion process, and a total of six accesses are performed.

In order to match the processing timing with the color copy, an open cycle is inserted after B as in the color copy of FIG.
Assume that memory access is performed eight times.

Therefore, as can be seen from FIG. 11B, in the color scan mode, one pixel cycle takes eight times as long as the memory access time.

FIG. 11C shows memory access in the monochrome copy mode.

Considering the operation of FIG. 6, SH
In the D processing, one memory read of G is performed, in the γ conversion processing, one memory read of G, and in the ED processing, one memory read and one memory write of K are performed.
Access times.

Therefore, as can be seen from FIG. 11C, in the monochrome copy mode, one pixel cycle takes four times as long as the memory access time.

FIG. 11D shows memory access in the monochrome scan mode.

Considering the operation of FIG. 7, SH
In the D processing, one memory read of G is performed, and in the γ conversion processing, one read of G is performed, so that a total of four accesses are made for each pixel.

Therefore, as can be seen from FIG. 11D, in the monochrome copy mode, one pixel cycle takes twice as long as the memory access time.

11A to 11D, the processing time ratio of the color copy mode, the color scan mode, the monochrome copy mode, and the monochrome scan mode is 16: 8: 4: 2.

The image input unit 2 obtains image data from the color CCD 4. However, the present invention is not limited to this. For example, an image of a document set on a document table is read using a scanning optical system. You may make it input into detection means, such as a color CCD.

The image processing unit 3 performs image processing on the image data read by the image input unit 2. However, the present invention is not limited to this. For example, image data from another host device on the network is transferred and input. Image processing.

Although the memory 11 is an external memory for external use, the present invention is not limited to this. For example, the memory 11 may be configured as a ROM or a RAM in the image processing unit 3.

Although the color printer 14 is separately provided outside the apparatus, the present invention is not limited to this, and the color printer 14 may be integrally formed in the image processing apparatus 1.

Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or an apparatus. In this case, by reading a storage medium storing a program represented by software for achieving the present invention into the system or the apparatus, the system or the apparatus can enjoy the effects of the present invention.

[0100]

As described above, according to the present invention,
In an apparatus having a plurality of functions combining color / monochrome and copy / scanner, a plurality of image processing data corresponding to each function mode is stored in one memory, and an access time is set corresponding to each function mode. Is divided and assigned, so that memory access is reduced in modes that require light and fast processing such as monochrome copying, and conversely, memory access is increased in modes that require heavy processing such as color copying. As a result, an optimum processing speed can be obtained for each mode, whereby the actual processing time limited by the access time to the memory can be optimized to improve the efficiency of image processing. Cost can be reduced by reducing the number of memories.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration example of a color image processing system according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a memory control unit.

FIG. 3 is an explanatory diagram showing an address map of a memory;

FIG. 4 is a block diagram illustrating image processing in a color copy mode.

FIG. 5 is a block diagram illustrating image processing in a color scanner mode.

FIG. 6 is a block diagram illustrating image processing in a monochrome copy mode.

FIG. 7 is a block diagram illustrating image processing in a monochrome scan mode.

FIG. 8 is a block diagram illustrating a configuration of an SHD processing unit.

FIG. 9 is a block diagram illustrating a configuration of a γ conversion unit.

FIG. 10 is a block diagram illustrating a configuration of an ED processing unit.

FIG. 11 is an explanatory diagram showing the timing of memory access corresponding to each mode.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image processing apparatus 2 Image input part 3 Image processing part (image processing means) 6 Mode setting part (mode setting means) 7 SHD part 8 γ conversion part 9 ED processing part 10 Memory control part (access control means) 11 Memory (storage) means)

Claims (12)

[Claims] An apparatus having a color copying function, a monochrome copying function, a color scanner function, and a monochrome scanning function, and performs image processing on a color image or a monochrome image formed by each of the functions. Image processing means, mode setting means for setting an operation mode for operating the image processing means in accordance with each function, storage means for storing image processing data corresponding to each operation mode, and storage means Access to each image processing data of
An image processing apparatus, comprising: an access control unit that divides and assigns each of the operation modes. 2. An apparatus having both a color copying function and a monochrome copying function, comprising: an image processing unit for performing image processing on a color image or a monochrome image formed by each of the functions; Mode setting means for setting an operation mode for operating in accordance with each function; storage means for storing image processing data corresponding to each operation mode; and access to each image processing data of the storage means.
An image processing apparatus, comprising: an access control unit that divides and assigns each of the operation modes. 3. An apparatus having both a color scanner function and a monochrome scanner function, wherein the image processing means performs image processing on a color image or a monochrome image formed by each of the functions. Mode setting means for setting an operation mode for operating in accordance with each function; storage means for storing image processing data corresponding to each operation mode; and access to each image processing data of the storage means.
An image processing apparatus, comprising: an access control unit that divides and assigns each of the operation modes. 4. The image processing apparatus according to claim 1, wherein the access control unit changes an access time per pixel in accordance with each of the operation modes. 5. A method for performing image processing corresponding to a color copy function, a monochrome copy function, a color scanner function, and a monochrome scanner function, wherein a color image or a monochrome image formed by each of the functions is provided. Performing image processing; setting an operation mode for executing the image processing in association with each function; storing image processing data corresponding to each operation mode in a storage unit; Means to access each image processing data,
Dividing and allocating each of the operation modes. 6. A method for performing image processing corresponding to a color copying function and a monochrome copying function, wherein the image processing is performed on a color image or a monochrome image formed by each of the functions. Setting an operation mode for executing the function corresponding to each function, storing image processing data corresponding to each operation mode in a storage unit, and accessing the image processing data of the storage unit.
Dividing and allocating each of the operation modes. 7. A method for performing image processing corresponding to a color scanner function and a monochrome scanner function, wherein the image processing is performed on a color image or a monochrome image formed by each of the functions. Setting an operation mode for executing the function corresponding to each function, storing image processing data corresponding to each operation mode in a storage unit, and accessing the image processing data of the storage unit.
Dividing and allocating each of the operation modes. 8. The image processing method according to claim 5, wherein the access changes an access time per pixel corresponding to each of the operation modes. 9. A color copying function, a monochrome copying function, a color scanner function, and a computer,
A medium storing a program for controlling image processing corresponding to a monochrome scanner function, wherein the control program performs image processing on a color image or a monochrome image formed by each of the functions. Setting an operation mode for executing the image processing corresponding to each function; storing image processing data corresponding to each operation mode in a storage unit; and accessing the image processing data in the storage unit. To
A recording medium storing an image processing control program, wherein the image processing control program is divided and assigned according to each of the operation modes. 10. A medium storing a program for controlling image processing corresponding to a color copying function and a monochrome copying function by a computer, the control program comprising: Image processing is performed on an image or a monochrome image, an operation mode for executing the image processing corresponding to each function is set, and image processing data corresponding to each operation mode is stored in a storage unit. Access to each image processing data of the storage means,
A recording medium storing an image processing control program, wherein the image processing control program is divided and assigned according to each of the operation modes. 11. A medium storing a program for controlling image processing corresponding to a color scanner function and a monochrome scanner function by a computer, the control program comprising: Image processing is performed on an image or a monochrome image, an operation mode for executing the image processing corresponding to each function is set, and image processing data corresponding to each operation mode is stored in a storage unit. Access to each image processing data of the storage means,
A recording medium storing an image processing control program, wherein the image processing control program is divided and assigned according to each of the operation modes. 12. The recording method according to claim 9, wherein said access changes an access time per pixel in accordance with each of said operation modes. Medium.